Relier Pairs Vocabulary sleeping habitsVersion en ligne Match the expression with the correct definition par Pedro Torres Hernandez 1 be wide awake 2 be sound sleep 3 drift off 4 sleep like a log 5 nod off 6 be fast asleep 7 feel drowsy 8 toss and turn 9 to take a power nap to sleep very soundly , so well that noises don't even wake you up. to take a brief sleep during the day in order to improve one's alertness and ability to work efficiently throughout the remainder of the day sleeping deeply sleeping in a way that makes it difficult to wake you fall asleep unintentionally. to move about and turn over in bed because one is unable to sleep tossing and turning all night Someone who is fully awake and unable to sleep you gradually fall asleep sleepy and having low energy